Valeant Pharmaceuticals Inc moves on after Allergan, Bill Ackman ‘speedbump’

There is life after Botox, according to the chief executive of Valeant Pharmaceuticals International Inc. Love him or hate him, Bill Ackman now runs the world’s top hedge fund Here’s the story of how Bill Ackman built Pershing Square into the top hedge fund in the world, with more than US$18 billion to work with In…